2193697389 has 16 divisors (see below), whose sum is σ = 3182403392. Its totient is φ = 1336048128.

The previous prime is 2193697343. The next prime is 2193697397. The reversal of 2193697389 is 9837963912.

It is not a de Polignac number, because 2193697389 - 2¹¹ = 2193695341 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2193697889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286159 + ... + 293724.

It is an arithmetic number, because the mean of its divisors is an integer number (198900212).

Almost surely, 2^2193697389 is an apocalyptic number.

It is an amenable number.

2193697389 is a deficient number, since it is larger than the sum of its proper divisors (988706003).

2193697389 is a wasteful number, since it uses less digits than its factorization.

2193697389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579996.

The product of its digits is 4408992, while the sum is 57.

The square root of 2193697389 is about 46836.9233511340. The cubic root of 2193697389 is about 1299.3482707590.

The spelling of 2193697389 in words is "two billion, one hundred ninety-three million, six hundred ninety-seven thousand, three hundred eighty-nine".